Stone-cutting machine.



A. BALL m1. H. MERGER.

STONE CUTTING MACHINE. nrmoumx FILED oc'rA 30,1905

Patented Dec. 12, 1911.

7 SHEETS-SHEET 1.

A. BALL 61 H. H. MERGER. STONE (HITTING MACHINE.

11 1 110111011 mum 001.30, 1905.

1,01 1, 1.45. Patented Dec. 12, 1911.

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A. BALL dz H. H. MERGER.

STONE GUTTING MACHINE.

APPLIOATIOH FILED 001130, 1905.

Patente Dec. 12, 1911.

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COLUMBIA FLA-Rodin PH conwummi'ron. n, c.

A. BALL 8: H. H. MERGER.

STONE CUTTING MAUHINB. APPLIUATIOH FILED oo'r. a0, 1905.

Patented Dec. 12,1911.

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coullalA PLANDUIAPII 1:0..VA5H1NBTON, n. c.

A. BALL 6: H. H. MERGER. STONE CUTTING MAGHINE. APPLICATION FILED001230, 1905.

1,01 1,145, Patented Dec. 12,1911.

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A. BALL & H. H. MERGER.

STONE GUTTING MACHINE. APPLICATION FILED 001230, 1905.

Patented Dec. 12, 1911.

7 SHEBTSSHEET 6.

I a H m n WK 7 A. BALL & H; H. MERGER. swam. CUTTING momma.

APPLIOATIOI run on. an, 1905.

Patented D00. 12, 1911.

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ALBERT BALL AND HENRY H.

TO SULLIVAN MACHINERY PORATION 0F MAINE.

MERCER, OF CLAREMONT,

COMPANY, OF CLABEMONT, NEW HAMPSHIRE, A GOR- NEW HAMPSHIRE, ASSIGN OBSSTONE-CUTTING MACHINE.

Specification of Letters Eatent. Application filed October 30, 1905.

Patented Dec. 12, 1911.

Serial No. 284,993.

To all whom it may concern:

Be it known that We, ALBERT BALL and HENRY H. MERGER, both citizens ofthe United States, and residents of Claremont, o anty of Sullivan,

State of New Hampshire, have invented crease the effectiveness of suchmachines.

Our invention may be applied to stone working machines of various typesand for various purposes, but its purpose will be sufficientlyunderstood from the following described and illustrated embodimentthereof where it is shown applied to a track channeling machineconstructed for angle cutting, that is to say, for cutting a channelgroove, the plane of which may be either perpendicular or inclined tothe plane along which the channel travels. A machine 0 this kind isoften required to carry its channel groove toward and under anoverhanging wall or other obstruction which is so situated as tointerfere with the cutting of the end of the groove if it be attemptedto operate the machine in the ordinary way. This is of frequentoccurrence in quarry working, where for the purpose of reaching valuableunderlying areas of stone without unnecessary surface excavation ofworthless material, or to follow formation pitches, or for otherreasons, the said walls of the quarry are cut obliquely instead ofvertically, forming an acute angle with the quarry floor, and the sidesof each strata being out under the sides of the preceding one. Thecutting of the channel groove into the acute angle or corner underlyingthe side is usually termed comer-cutting.

In corner-cutting the lift and length of the cutter-head preventscarrying the out under the overhanging wall and into the acute angleformed between the same and the floor without some adjustment of thecutter-head. To carry the groove to the end of the quarry floor it hasbeen usual to mount the cutter-head so that the former may be adjustedto the inclination of the side wall and the inclined cutter-head thenmoved in under the latter to complete the groove. The channeler,therefore, whether cutting a groove perpendicular or inclined to theplane of travel, is progressively advanced across the quarry floor,operating in the usual manner until it approaches close enough to theoblique side wall to have its further cutter movement obstructedthereby. The machine is then stopped and the cutterhead loosened andinclined forwardly at the angle of the wall and there fixed in position.The channeler, after first being slightly retracted, is caused toadvance to carry the groove to the end of the floor, the forward reachof the tool permitting it to be out close to the wall. This method ofcorner-cutting permits the groove to be carried to the end of the quarryfloor but is quite slow and inefficientsinoe the inclined tool strikesthe stone at the bottom of the groove at an angle instead ofperpendicularly. Increasing the angular inclination of the cutting tooldecreases the effectiveness of the blow and when an inclination ofapproximately 26 is exceeded, the tool fails actually to cut but slidesover the stone at each stroke and the groove is formed by the slowprocess of frictionally wearing away the substance of the stone. When itis consid ered that the inclination of the quarry side walls sometimesreaches an angle of 45, it will be comprehended, as is the case, thatthe completion of the channel groove beneath the overhanging side is aslow and inefficient process with the usual form of channeling machine.

One object of our invention is to provide a channeling or other likemachine with means for completing its channel groove when under anobstruction like the oblique side wall of a quarry, without sacrificingso much of the effectiveness which the machine possesses when cutting inthe open. Such means may be applied to machines other than channelingmachines, and for the avoidance of obstructions other than obliquequarry side walls, and such means may be embodied in a variety ofconstructions, but in the present instance we have provided a track, anle-cutting channeler with a cut ting head so mounted that, operating asusual in the open, it may be ma e to cut under the overhanging sidewalls while working along the arc of a circle delivering its blowsperpendicularly to the bottom of the groove, thereby losing none of theeffectiveness of its cutting stroke.

ur invention also has other objects both connected and disconnected fromthe above and these as well as the principles of our invention will bebest understood by reference to the following description taken inconnection with the accompanying illustration of one specific embodimentthereof, while its scope will be more particularly pointed out in the apended claims.

In the drawings,l*igure 1 is a front elevation showing a machineembodying one form of our invention and having its cutterhead adjustedfor corner-cutting at the right of the machine, the cutting engine andcutting tools being removed for sake of clear ness; Fig. 2 is a sectionin plan taken on the line 2-2 through the gear box at the end of thetrunnion; Fig. 3 is a plan view of the machine shown in Fig. 1, thecutterhead being here shown as swung to a vertical osition instead ofthe oblique position in ig. 1; Fig. 4 is an end elevation; Fig. 5 is avertical section, partially broken away, taken through the sup )ortingstandard and the sliding segment; ig. 6 is a detail of the slidingsegment; Fig. 7 is a fragmentary view showing the attachment of thetrunnion clamp to the standard; Fig. 8 is a dia rammatic view showingthe different positions assumed by the cutter head and segment incorner-cutting; Fig. 9 is another diagrammatic view showing theadjustment of the several parts of the machine to a reversed positionfor corner-cutting at the opposite end thereof; Fig. 10 shows in frontelevation, and Fig. 11 in section, a modified construction of thesegment operating mechanism; Fig. 12 shows in side elevation, and Fig.13 in section, another modification; Figs. 14, 15, 16 and 17, othermodified forms of mechanism for moving the segment, and Fig. 18 is asectional elevation taken through the cutter-head, showing the toolfeeding mechanism.

Referring to the drawings and more pa ticularly to Figs. 1 to 6, and tothe illustrative embodiment of our invention there shown, the machine issupported upon a frame or carriage A having the two end hangers A. Uponthe frame are mounted two pairs of trucks B, the latter trackin with therails C which are customarily laid upon the quarry floor and along whichthe machine when cutti in the usual way is advanced by any suita le orordinary means.

The cutter engine D, cross head E and percussive cutting tool F (Fi 4and 18) are carried u on the cutter-hind G, and during operation of themachine, as the channel groove deepens, are advanced down and alongsuitable guide-ways in the cutterhead by any usual or well-knowntool-feed ing mechanism employed upon machines of A conventionalrepresentation of such tool-feeding mechanism is indicated in Fig. 3 andparticularly Fig. 18, where there is provided the feed screw H havingthreaded engagement with the engine cylinder D, or parts attachedthereto, and having its upper end journaled in the bracket G bolted tothe upper end of the cutter head. To the end of the feed screw is atasuitable ratchet and pawl connection, the handle H by means of which thescrew may be turned at will and the tool advanced step by step towardthe work.

During the cutting of the ordinary cha nnel groove the cutter-head isfixedly held, as shown in full lines in Fig. 9, either vertically or,when angle cutting is desired, inclined backward and to the plane of thedrawing; but hen used for cutting corners, it is not only tilted forwardto cut under the overhanging side wall of the quarry, but is given anoscillating movement, so that the tool travels in an arc-like path andits blows are delivered radially from the center of oscillation of thecutter-head. To this end, the cutter head at its upper end is swiveledupon a sector-like standard or support a, there being provided for thispurpose (Figs. 4 and 5) a. trunnion pin a, carrying the verticallydrilled head a to which the cutter-head is pivotally secured by the pin(1 this vertical pivotal attachment preventing any binding in theswinging movement of the cutter-head to be de scribed.

The sector-standard or support, which may be adjusted to a variety ofdifferent positions, is fixedly held during operation of the machine andis provided near its base with a curved finished guide-way in which ismounted for sliding movement the curved actuator segment 6. Thisactuator or actuator segment, which is shown in detail Fig. 6, isprovided with two raised seats or spottings I) and b, to either of whichthe cutter-head may be bolted, it-being shown in Fig. l secured to theright-hand one of the two seats and diagrairnnatically indicated in Fig.9 assecured to the left-hand one. The segmental slide may therefore bemoved in either direction in its guide-way in the standard a, beingretained therein by the gibs a which overlie the lower face of the slidewhen the latter is in position, so that the slide when moved to theright or the left as viewed in Fig. 1 causes the cutterhead to swingwith it about the trunnion pin a as a center.

For the reciprocatory actuation of the cutter-head in this manner duringcornercutting, the slide is connected at one end with a wire rope c, orother like flexible of which meshes with the gear connection, and at itsopposite end with a similar rope 0'. These ro es may be fastened to theends of the slide in any suitable way, as by the clamping devices shownand are connected respectively to opposit ends of the driving chain d,which latter passes over the sprocket wheel 01 at the end of themachine. The rope c is directly connected to the end of the chain, butthe rope c first passes about the sheave c which is rotatably carried bya depending tongue 0; at the bottom of the sector and acts to reversethe direction of travel of the rope. The segmental slide is providedwith a forwardly projecting wall b (Fig. 5) the under face of which hasa double groove for the reception of the wire ropes, so that the latterdraw against the grooved edge thereof and pull evenly upon the segment 1in any portion thereof.

Any suitable means for causing reciprocating driving movement of thesprocket d and thereby the oscillating movement of the cutter-head, maybe employed, but herein we have shown a special tool actuating engine 6(shown only in Fig. 3) which turns the transverse driving shaft e, beingconnected by the flexible connection 6 to the source of pressure supply(not shown) and being controlled as to speed by its own throttle valve 0The transverse shaft 6' carries at its end the beveled pinion f whichimparts opposite but equal rotation to the two bevel gears f and P,which may be separately clutched to and unclutched from c the clutchshaft f by sliding movement of the double clutch member f Movement ofthe latter is effected by movement of the shifting controller f whichhas an aperture f into which may be thrust a hand lever, the handle (notshown) of which is conveniently positioned for grasp by the operator.The clutch member may be shifted by the hand lever to clutch either thegear f or gear f to the shaft f, or left in an intermediate positionwherein neither gear engages the shaft and the latter remainsstationary.

The shaft f has a pinion 7 which meshes with the counter-shaft gear 1driving the counter-shaft pinion 1, which in turn meshes with the gear fupon the main counter-shaft f. The latter carries at each end a pinionone f, the latter being secured (Fig. 2) to the beveled pinion f,through which driving movement is imparted to the bevel gear f and thesprocket wheel (11' keyed, or otherwise secured, thereto. The gears fand f are revolubly mounted upon the sleeve 1", the latter fixedlysecured within the clamping t bracket f", and the gear f and sprocket dare revolubly mounted upon the pin f, also i secured to said bracket,these several gear- 1 g and g to the i trunnion ing elementsconstituting, together with the bracket a removable gearing mechanism,such that if the bracket is unclamped from the end of the trunnion shaft9, said gears may be withdrawn with the bracket as a single piece.

By means of the reduction gearing de scribed, the tool actuating engine6 when running turns the sprocket (Z, thereby causing travel of thechain (1 and a comparatively slow swinging movement of the cutter-headabout its trunnion pin. \Vhen the swinging movement has advanced farenough in one direction, the shifting controller f may be thrown andmovement reversed, this oscillating movement of the cutter-head beingcontinued during the cutting of the corner and permitting thereby theradial action of the tool upon the bottom of the channel grooveunderlying the inclined quarry wall. As the groove deepens and the arcof the tool-travel increases in length, the tool will pass over thegroovebottom more rapidly, but to offset this the engine speed may begradually reduced. if desired, in proportion to the depth of cut, or theengine speed may remain the same for all depths of channel cut, beingadjusted at the outset for what is correct for midway the cut andapproximated only above and below that point.

Since the cutter head is swung mechanically by its connections to theengine it may be made to execute its predetermined movement with theutmost precision. This permits the rate of swinging movement during anygiven swing to be maintained substan tially uniform if desired so that atrue arelike formation may be maintained at the bottom of the deepeningchannel groove.

For cutting different corner angles, the standard. a may be adjust-ablyinclined about the trunnion box h, which latter (Figs. 1, 5 and '2')during operation of the machine fixedly secures the standard to thetrunnion shaft g, the latter in turn being clamped at frame of themachine. The provided with box is split and is clamping screws by whichit may clamped to the trunnion shaft and is also provided with atrunnion h which (Figs. 5 and 7) extends into an aperture in the lowerpart of the standard. The latter is effectively secured to the trunnionbox by the trunnion plate [1 lying behind the sliding segmentand fittinga shouldered. recess formed in the outer face of the standard and in theend of the trunnion aperture, being united to the trunnion by the threeclamp ing bolts shown. Then the machine is in operation these clampingbolts are set up tight, thereby immovably clamping the sector to thetrunnion; when it is desired to adjust the support to a different anglethese bolts may be loosened and the support adjusted about the trunnionto the desired inclination (see clamped.

In addition to its attachment to the trun- 5 nion box. the support a issuitably braced and rigidly held at the top and bottom. The extensiblebrace rod j in line with the trunnion shaft is fastened at its upper endto the top of the standard and, extending down- 0 ward and outwardlengthwise the machine, is secured at its lower end to a sleeve jadjustably clamped upon the trunnion shaft g. The top of the standard isalso supported by the extensible back brace k which is jointed 1 by auniversal connection to a clamping plate Z" bolted to a seat upon theframe.

The lower portion of the sector-standard containing the segmentalguide-way is braced against either longitudinal or lateral Fig. 9),where it is again displacement by means of the end braces Z (Figs. 1 and3) and m (Fig. 3). The former is clamped to the trunnion shaftand has asegmental bearing face Z against which rests the corresponding bearingface on the back of the guide support, the latter, however, being formedwith a curved T slot (1." (Fig. 3) formed with the axis of the trunnionh as a center. By means of one or more bolts Z carried by the brace l.the threaded ends of which carry nuts working within the curved T slot,the end of the guide support may be clamped against the bearing face ofthe end braces in any position to which it may be adjusted about thetrunnion as a center. The bearing face is elongated and perforated in anumber of places. as shown. so that the clamping bolts may be located indifferent positions to correspond to different inclinations of thesupport. The opposite end of the guide support is provided with asimilar T slot a (Fig. 3). and a similar bearing face, there beingengaged therewith. however, instead of the segmental brace I with aplurality of bolts, a clamping plate m having a single bolt jointed tothe extensible brace rod m the latter being connected by the universaljoint of to the plate 722 which is mounted on a stud, the latter boltedto the side of the frame. The opposite transverse frame member has athreaded boss (see Fig. 4), to which the same plate 122 may be boltedfor reverse adjustment of the apparatus.

The mode of adjusting the standard will now be apparent.

Vith the machine adjusted as shown in Fig. 1. if it is desired toincrease or decrease the inclination of the support for cornercutting ata. different angle, the trunnion plate 1A2 is freed by loosening itsclamping bolts and the support tipped forward or backward lengthwise themachine about the trunnion as a center, the support being temporarilyloosened for adjustment from the end braces l and m, the side brace jand the back brace 7c. TVhen the support is given the desiredinclination, it is again made fast to the end braces and the back andside braces are adjusted to the changed position of the support. Theback brace requires only to be lengthened or shortened slightly; theside brace j may be lengthened or shortcned or adjusted to a newposition upon the trunnion shaft. When extreme angles are needed. bracesof various lengths may be used. The end braces are freed by unclampingthe nuts which work in the T slots a" and a, adjusting the bracesthemselves and again clamping the nuts up in the new position of thesupport. 30

The flexible driving connection between the sliding actuator segment andthe driving gearing permits all necessary adjustment of the supportwithout affecting the alinement of connected parts.

\Vhen it is desired to cut in the opposite direction to what is shown inFig. 1. that is to say, to cut a corner at the opposite end of themachine. the entire corner-cutting mechanism can be reversed into theposition diagrammatically shown. in Fig. 9; the cutter-head g is removedfrom the seat or spotting and secured to the seat 7),- the clampingbracket f" is loosened and withdrawn from the end of the trunnion shaft9,- all parts are loosened from the trunnion shaft and the latter isfreed from the frame and is pushed through so to overhang at theoppositeend of the frame and upon this overhanging end the clamping bracket isthen secured in reverse relation. Obviously. if desired. for thepurposes of reversing the mechanism. the trunnion shaft may be longenough to overhang the machine at either end. The trunnion box isunclamped and moved to the left-hand end of the machine. as viewed inFig. 1. the parts assuming the general position indicated in Fig. 9. Theseveral brace rods are reversed, the back brace being disconnected fromthe seat shown in Fig. 3 at the right of the frame and secured to thecorresponding seat shown at the left thereof. the end brace mistransferred to the left-hand side of the machine, and the side brace jtransferred from the left-hand end of the trunnion shaft to theright-hand end thereof. The brace Z is replaced by one similar in,construction and form but reversely arranged. The entire machine istherefore reversible and. with slight change in adjustment, may be usedfor corner-cutting at either end thereof.

\l-"hen the machine is employed for cut ting the ordinary channel groovein the open, the support will be adjusted to a mean upright positionsuch as is shown in full lines in Fig. 9. Under these conditions thetool engine a is disconnected from the oscillating mechanism. Underthese circumstances the segment is pre- 13 machine bodily from ventedfrom sliding in its support by any suitable locking devices, such as apin placed in the then alining holes a and b in the support and segment.respectively; the segment being fixedly held in such position as tobring the cutter-head upright as shown in Fig. 9.

For angle cutting, either with the ordinary channel groove or incorners, the entire support. with the cutter-head. segment, drivingchain, sprocket and gears. may be tipped back (relatively to the planeof the drawing in Fig. 1) by merely loosening the clamps g and whichhold the trunnion shaft. freeing the back brace is and the end b "ace mand resetting them when the support is given its desired inclination.

During the cutting of the ordinary channel groove the channeler iscaused to traverse the track-way. as usual but in cornercutting itdesirable to have it maintained stationary. Any suitable devices may beempdoyed for this purpose, but we have herein shown means for liftingthe entire the track and there rigidly holding it during the cutting ofthe corner. For this purpose the hangers A. A are provided at their endswith lugs 91 which are vertically threaded to receive the jack screws n.the latter having feet which aline with and are directly over the top ofthe rails (Fig. 4). The enlarged feet of these jack screws fit a socketin a split cl ampo. the two halves of which may be clamped securely tothe under side of the tread of the rail by the transverse clamping screw0. When the clamping screw is tightened. the clamps grip the rail andprevent movement of the jack screws. and. therefore. movement of themachine. Before clamping. the jack screws are turned to lift the machinehieh enough for the rails to free the truck wheels from the latter. Whenthe corner-cutting has been completed, the machine is again lowered uponits trucks and the clamps loosened. Obviously. other ways of giving arigid support to the machine during corner-cutting may be employed. andif desired. the jack screws may rest directly upon the quarry bottom. orin holes drilled in the quarry bottom. but the support directly upon therails is usually more convenient and even.

The driving means described for the sliding segment practical andconvenient, but other means may be employed. such for example. as shownin Figs. 10 and 11.

Referring to the modification there illustrated. the sliding actuator orsegment instead of being connected with the driving chain by a flexibleconnection. is at its lower edge formed into a segmental gear 72 whichmeshes with a pinion p journaled upon the depending tongue. of thestandard. the pinion being secured to a rotatable sprocket l l l l l 7:which is driven by the sprocket chain engaging the main driving sprocketas before.

In Figs. 12 and 13 there is shown a modified construction wherein thesliding actuator segment is provided with an internal gear r meshingwith the pinion r, the latter mounted to rotate with the shaft r securedto the sprocket r at the back of the support, said sprocket being drivenby a suitably connected driving chain.

Fig. 14 shows a modification similar to that in Figs. 12 and 13, theshaft 8 however, being connected through the medium of a universal joint8 to a driving shaft 8 which may be directly driven from the toolactuating engine with the interposition of suitable clutching mechanism.

In Figs. 15 and 1.6 is shown the application of a rope drive to themoving segment. ()ppositely spiraled drums t and t are provided to whichare attached respectively the ropes t and t the former being connectedto one end of a segment after passing over the idle sheave t", and thelatter connected to the opposite end of the segment after passing overfirst the sheave t and then the sheave t. The drums are mounted upon adriving shaft which may be mounted for rotation like the sprocketdriving wheel in the modification as described. whereby rotation of theshaft causes one drum to wind up its rope and the other to unwind.

In Fig. 17 there is shown a modification wherein the standard itprovides a circular guidcway for the sliding actuator 21' which hereinis no longer segmental in form. but in the form of an annular plateadapted. if desired. to make a full revolution in the standard. Thecutter-head may be bolted rigidly to the spotting it? upon this plateand when moved through the agency of the driving pinion n meshing withthe gear a upon the edge of the plate. the cutter-head may be oscillatedas before. but the amplitude of the angle of oscillation may beincreased to any desired extent. With this construction the cutting maybe made in either the right or left hand wall of the quarry. or in thebottom or at the right or left hand corners.

\Vhile we have herein illustrated our invention as applied to achanneling machine and a channeling machine of the tvPe shown. it is tobe understood that not only mav the described details of constructionand arrangement of parts be widely deviated from. without departing fromthe principles of the invention. but that many applications thereof maybe made and many embodiments thereof employed which are unnecessary torefer to in the description herewith.

We claim.

1. A channeling machine having a carriage. a cutter-head. a support uponwhich the same is mounted for swinging movemeat. means permitting thecarriage with the support to be progressively moved lengthwise thechannel groove, a tool-connected engine upon the cutter-head forreciprocating the tool, mechanically driven means for swinging thecutter-head with a substantially uniform movement about its pivotalsupport also lengthwise the channel groove.

2. A channeling machine having a. carriage. a reciprocating tool,power-actuated means for reciprocating the tool upon its carriage to andfrom the work, and Inechani call v driven means for moving the toollengthwise its carriage and lengthwise the channel groove with asubstantially uniform movement.

3. A channeling machine provided with a. carriage. a cutting tool havinga reciprocatory percussive cutting movement to and from the work, saidmachine being adapted to be moved progressively for cutting an ordinarylongitudinal channel groove. means for maintaining said carriagestationary, and means for giving the tool a swinging reciprocatingmovement in the plane of the channel groove for corner cutting whilethus stationarily maintained.

4. A channeling machine having a channeling tool provided with a cuttingend, tool reciprocating means for giving the tool a percussive cuttingmovement to cut an or dinary longitudinal channel groove duringprogressive travel of the machine lengthwise the same. and means forcorner cutting in the plane of the channel groove while stillmaintaining the cutting end of the tool perpendicular to the bottom ofthe groove.

5. A percussive channeling machine having a channeling tool providedwith a cutting end. means for cutting an ordinary longitudinal channelgroove during progressive movement of the machine lengthwise the channelgroove while the tool is undergoing reciprocation. and means forcompleting the channel groove under an inclined side wall of the quarryby a movement of the tool along the arc of a circle and in the plane ofthe channel groove while still un dcrgoing reciprocation to and from thework.

6. A channeling machine having a percussive channeling tool providedwith a cutting end. tool reciprocating means. means for cutting anordinary longitudinal channel groove during progressive movement of themachine lengthwise the channel groove while the tool is undergoingreciprocation. and means for completing the channel groove under aninclined quarr by a. reciprocating movement of the tool along the arc ofa circle and in the plane of the channel groove while still. undergoingreciprocation to and from the work.

side wall of the l 7. A channeling machine having a traveling carriage,pivotally mounted oscillatory tool carrying means. a support therer'or,and means tor adjusting said support about an axis transverse to thepath of movement. of the channeling machine to vary the limit ofoscillation of the tool carrying means.

8. A channeling machine having a traveling carriage. a support.toolarrying means mounted for swinging movement about said supportlengthwise the channel groove and permitting oscillation of the toolunder and out from an overlying side wall. and means for adjusting thesupport about a pivotal axis transverse to the channel groove.

9. A channeling machine having a support. tool-carrying means mountedfor swinging movement about said support. and means for adjusting saidsupport either about an axis transverse to said machine or an axislengthwise the same.

10. A. channeling machine having a sup port. a trunnion for said supporthaving its axis transverse to said machine. tool-cin'rying meanspivotally mounted upon said sup port about an axis parallel with butabove said trunnion. and means for moving said tool-carrying means aboutits pivot during reciprocation of the tool.

11. A channeling machine having a support. a trunnion having its axistransverse l to the machine upon which said support is l adjustahlyfixed. tool-carrying means upon I said support. means for swinging saidtool l carrying means independently upon the support while the tool isundergoing reciprocation. and means for adjustably inclining saidtrunnion and said support lengthwise the machine.

12. A channeling machine having a. support. a rcciprocatorv tool. meansalso for swinging the tool during reciprocation. a

t trunnion having its axistransversc to the ma- 1 chine upon which saidsupport is adjustablv l l about an axis fixed. means for adjustablvinclining said trunnion and said support about an axis lengthwise themachine. and also For changing the position of the trunnion lengthwise lthe machine.

13. A channeling machine having a support. a trunnion having an axistransverse to the machine upon which said support is I adjustabl vfixed. tool-carrying means swingingl v mounted upon the support. andmeans tpermitting the shifting of said I lengthwise the machine. ll. A.channeling machine having a sunl port. tool-carrying means mounted uponsaid I support so as to permit power-driven recipl rccation of said toolwhile the toolcarr v" ing means is caused to swing through the are of acircle upon said support at one end of the machine. and means permittingthe shitting of said support in the same direc tion as the swinging ofsaid tool-carrying trunnion means to provide, when desired, for theoscillatory movement of said tool-carrying means at the opposite end ofsaid machine.

15. Tn a channeling machine, the combination with a percussivechanneling tool. provided. with a cutting end, of a support upon whichthe same is pivotally mounted for swinging movement. means to hold thesupport rigidly fixed upon the quarry bottom adjacent an overhangingside wall of the quarry and with the tool positioned to swingreciprocatively through a plane transverse to the quarry bottom from anupright position to a forwardly inclined position beneath said wall, andmeans for swinging the tool about its pivotal support to extend thechannel in the quarry bottom beneath the overhanging side wall.

16. A channeling machine having a support, tool-carrying means carryinga powerdriven reciprocating tool mounted upon said support. power drivenmeans for swinging said tool-carrying means, and means for adjustingsaid support about an axis lengthwise the machine for angle cuttin 17. Achanneling machine having an upright support. tool-carrying meanspivotally secured to said support, a sliding actuator segment adapted tomove in a suitable guideway below said pivotal connection, means forattaching said tool-carrying means to said actuator segment, and meansduring the reciprocation of the tool for causing reciprocatorv movementof said actuator segment.

1%. A clninneling machine having an upright support. tool-carrying meanspivotallv secured to said support, a sliding actuator adapted to move ina suitable guideway below the pivotal connection. means for attachingsaid tool-carrying means to said actuator. and power-driven means formoving said actuator.

19. A channeling machine having an upright support, tool-carrying meanspivotally connected to the same, a sliding actuator segment secured tosaid tool-carrying means, and means acting through said actuator segmentto move the tool-carrying means about said support.

20. A channeling machine having an upright support, means for adjustingsaid support lengthwise the machine, swinging tool-carrying meansmounted upon said support and an actuator mounted for sliding movementin said support, and means con necting said actuator to saidtool-carrving means in any one of a pluralitv of positions.

21. A channeling machine having a support, tool-carrying means mountedfor swinging movement upon said support. means tor adjusting saidtool-carrying m an for corner-cutting to overhang one end of saidmachine for forward inclination in the direction of swinging movement orto adjust the same to overhang the opposite end with a reverseinclination, and means for imparting a swinging movement to thetool-carrying means toward and away from its forwardly inclined positionduring reciprocation of the tool.

22. In a channeling machine, an up right support, tool-carrying meanspivotally mounted upon said support, power-driven means for causingmovement of said toolcarrying means upon its pivot, power transmissionmechanism for transmitting movement from said power-driven means to saidtoolcarrying means, and a chain and sprocket connection between saidtool-carrying means and said power transmission mechanism.

23. A channeling machine having a carriage, a cutter head, a support, atrunnion upon which said support is adjustablv fixed, a trunnion shaftlengthwise the machine and along which said trunnion may be adjusted,power transmission mechanism carried by said trunnion shaft and meansconnecting said power transmission mechanism and said cutter-head forcommunicating movement to the latter.

24. A channeling machine having a support adapted to be fixed at one endof the machine, a swinging cutter-head mounted upon said support, powertransmitting mechanism at the opposite end of the machine for swingingthe said cutter-head, said power transmitting mechanism and said supportbeing adjustable wherebv their positions may be reversed upon saidmachine.

25. A channeling machine having a carriage, a shaft fixedly secured tosaid carriage and extending lengthwise the same, an adjustable clampupon said shaft carry ing a. trunnion having an axis transverse to themachine, an upright support adjustably fixed at its lower end upon saidtrunnion, a cutter-head pivoted to the upper end of said support. powertransmission mechanism adjustablv secured at the opposite end of saidtrunnion shaft, an actuator slidablv mounted in a. curved guide-way inthe lower part of said support and secured to said cutter-head, aflexible connection scoured to the opposite ends ot said guideway andconnected to said power transmission mechanism, and power driven meansfor imparting reciprocatorv movement to said cutterhead through saidpower transmission means.

26. A channeling machine having a. carriage, a support thereonadjustable about an axis lengthwise the cutting plane. a cutter headpivotally mounted on the support to swing lengthwise the cutting plane.a tool reciprocating engine mounted on the cutter head, powertransmitting mechanism including a rotatable member axiallv alined withthe tipping axis of said support and power transmitting connectionsbetween the cutter head and the rotatable member.

27. A channeling machine having a tool carrying member, a supporttherefor ad justable for angle cutting about an axis lengthwise thechannel groove, means for imparting cutting movement to the tool andmeans for simultaneously swinging the tool carrying member through thearc of a circle, said swinging means including a power transmissionmember axially alined with the said axis of said support.

29. A channeling machine having in combination a cutter-head G, areciprocatory tool carried thereby, a support a, a trunnion box itproviding means for adjustably tipping the support about an axislengthwise the channel groove, and tool swinging connections forswinging the tool lengthwise the channel groove, including a gear falined with the tipping axis of the support.

29. A channeling machine having a carriage provided with means forengaging with a trackway to permit the progressive movement of themachine along the same, a channeling tool having a cutting end, a crosshead from which the tool projects for at least the depth of the channelgroove, a tool reciprocating engine, a cutter head on which said crosshead and engine are mounted, said cutter head being located near theside of the machine to permit the cutting of a channel groove lengthwisethe carriage, means on the cutter head for feeding the cross head andengine toward the work, means for stationarily securing the carriage ina given position upon the track-way, a support upon which said cutterhead is mounted forswinging movement about an axis transverse to thecutting plane, said support being adj ustable upon said carriage aboutan axis lengthwise the cutting plane, thereby to change the angle ofinclination of the channel groove, an engine upon the carriage, drivingconnections between the engine and the cutter head to cause the latterto undergo swinging movement upon the support and reversing means forreversing the swinging movement, said cutter head being so mounted as topermit its adjustment to a forward inclination in advance of either endof the machine and its swinging movement through an arc determined bythe forward inclination.

30. A channeling machine having a carriage provided with means forengaging with a trackway to permit its progressive movement along thesame, cutting means upon said carriage for cutting an ordinary channelgroove, means for stationarily securing the carriage in a given positionupon the track, and means for simultaneously giving said cutting means aswinging move ment in addition to its cutting movement.

31. A channeling machine having a piv- 1 i l I l I l 1 t I I 1permitting oted cutter head, a reciprocatory channeling tool mounted onsaid cutter head and having a cutting end, means for holding said cutterhead fixed during the cutting of the longitudinal channel groove, means,for imparting swinging movement to the same simultaneously with thereciprocatory movement of the tool after completion of the principalportion of the channel groove, a carriage for said machine having meansfor engaging with a trackway to permit the progressive movement of themachine along the same, and means for stationarily securing the same ina given position upon the track.

32. A channeling machine having a carriage provided with meanspermitting its progressive movement while cutting the ordinarylongitudinal channel groove, a percussive channeling tool provided witha cutting end, a cross head from which said tool projects for at leastthe depth of the channel groove, means for reciprocating said tool toadvance its cutting end against or retract the same from the bottom ofthe channel groove, means for stationarily securing the carriage in agiven position, and means permitting the simultaneous swinging movementof said reciprocating tool lengthwise the channel groove for cornercutting.

33. A channeling machine having a carriage permitting its progressivemovement while cutting the ordinary longitudinal channel groove,reciprocatory cutting means, a swinging support for said cutting meansswinging movement thereof lengthwise the channel groove, means forfeeding the cutting means upon said support. toward the work, means forimparting swinging movement to said cutting means simultaneously withits reciprocations, and means for holding the carriage fixed during thesaid swinging movement.

34. A channeling machine having a carriage, a support mounted fortipping movement about an axis parallel with the longitudinal channelgroove, a cutter head pivoted upon said support adjacent to the side ofthe machine, an engine upon said cutter head, a reciprocatory tool alsothereon connected to be reciprocated by said engine, and means forswinging said cutter head simultaneously with the cutting movement ofthe tool lengthwise the channel groove.

35. A channeling machine having a carriage, a cutter-head mounted on thecarriage for swinging movement lengthwise the channel groove and in thedirection of the travel of the carriage, cutting means upon said head,power-actuated means for imparting cutting movement to the cuttingmeans, and

power-actuated means for swinging the cutter head during the cuttingmovement.

36. A channeling machine having a carriage, a support at the side of thecarriage mounted for tipping adjustment about an axis lengthwise thecutting plane, a cutter head mounted for swinging movement at the sideof said support to overhang the side of said carriage, cutting meansupon said cutter head, an engine also thereon for imparting cuttingmovement to said cutting means and mechanically operated drivingconnections for imparting swinging movement to said cutter headlengthwise the channel groove simultaneously with the cutting movementof said cutting means.

37. A channeling machine having a carriage, a tool support at the sideof the carriage, cutting means thereon, means for imparting cuttingmovement to said cutting means, and means for swinging said tool supportlengthwise the channel groove simultaneously with the movement of thecutting means, said support holding the cutting means at a forwardinclination from either end of the machine to permit its swingingmovement toward and from said forwardly inclined position for cornercutting in advance of the machine.

38. A channeling machine having a carriage, a. supporting frame mountedfor tipping adjustment at the side of the carriage about an axislengthwise the cutting plane, a cutter head pivoted upon said supportfor swinging movement lengthwise the cutting plane, reciprocatory toolcarrying means on said cutter head, an engine connected thereto also onsaid head, mechanically operated driving connections for impartingswinging movement to said cutter head lengthwise the cutting planesimultaneous with the reciprocations of the tool, and means forreversing the swinging movement of said head.

39. A channeling machine having reciprocatory tool carrying means, aswinging support therefor mounted to swin length wise the cutting plane,mechanical y driven means for swinging said support at a predeterminedrate of movement simultaneously with the reciprocations of said tool andgearing connections between the power driven means and the support.

40. A channeling machine having reciprocatory tool carrying means, aswinging support therefor, a motive device also on said support forimparting cutting movement to the tool carrying means, power drivenmeans for swinging said support simultaneously with the reciprocation ofthe tool carrying means, gearing connections between the power drivenmeans and the support and means for reversing the swinging movement.

41. A channeling machine having a carriage, a support at the side of thecarriage, tool carrying means pivotally mounted upon the support, powerdriven means for causing movement of said tool carrying means upon itspivot lengthwise the channel groove, and

ower transmission devices including a drivmg chain for transmittingmovement from said power driven means to said tool carrying means.

42. A channeling machine having tool reciprocating means for cutting anordinary longitudinal channel groove and power driven means for swingingt e tool support at a predetermined rate of JOIUCHl' lengthwise thechannel groove corner cutting thereby maintaining the tool perpendicularto the bottom of the groove.

43. A channeling machine having a carriage, a supporting frame mountedon trunnions at one side thereof, a cutter head pivoted at the side ofsaid support to overhang the carriage, and transmission devices forswinging sai cutter head including a power transmission shaft alinedwith said trunmons.

44. A channelmg machine having a reeiprocatory channeling tool mit aswinging movement lengthwise the channel .groove, and means for swingingsaid tool during its reciprocation, said means including a flexibledriving connection.

45. A channeling machine having a carriage, a percussive channeling toolprovided with a cutting end, a support for said tool upon which the sameis pivotally mounted for swinging movement, and power-driven means formoving the tool about its pivotal sup )ort, the range of swingingmovement 0 sai tool being sufficient to swing said tool from a forwardlyinclined position to or through an upright position upon its pivotalsupport.

46. A channeling machine havin a carriage, an engine, a cross-head and atool -fixedly secured to said cross-head, and a support upon which saidengine and toolearrying cross-head are mounted for swinging movementlengthwise the channel groove during reciprocation of the tool, saidsupport being mounted at the side of the earriage to permit thereciprocation of the tool while swung through the arc of a circle forcorner cutting or reciprocation of the tool in a fixed upright positionfor cutting the ordinary channel groove.

47. A channeling machine having a carriage, a support on said carriage,a reciprocatory tool pivotally mounted upon said support, thereciprocatory path of said tool intersecting the axis of swingingmovement, means for reciprocating said tool, and means forsimultaneously swinging the same lengthwise the channel groove.

48. In a channeling machine, the combination with a. percussivechanneling tool provided with a cutting end, of a support upon which thesame is pivotally mounted for swinging movement, means to hold thesupport rigidly fixed upon the quarry bottom adjacent an overhangingside wall of the quarry and with the tool positioned to mounted toperswing reciprocatively through a plane trans verse to the quarrybottom from an upright position to a forwardly inclined posi tionbeneath said wall, and power-driven means for swinging the tool aboutits pivotal support to extend the channel in the quarry bottom beneaththe overhanging side wall.

4-). In a cln. "ling machine the combination with a frat. A of achanneling tool 1*", motive means for giving the tool a reciprocatorypercussive movement, a support G on which the tool is carried, anadjustable support (I, on which the support. (1: is pivotall v mounted,means for releasably holding said 5111))01i G fixed while the machine isadvanced to cut the ordinary channel groove, said support G whenreleased permitting a swinging movement for corner cutting, and meanssuch as the clamps O to hold the frame fixed for corner cutting.

50. In a channeling machine, the combina tion with a frame A, means,such as the clamp O, to fix it rigidly on the quarry bottom adjacent theoverhanging side wall of the quarry, a percussive channeling tool F, atool-carrying support G held on the frame to swing over the quarrybot-tom from a vertical position to a forwardly inclined position to cutthe groove in the quarry bottom and under the overhanging wall, andmeans, such as the engine e, to swing the support while the tool iscutting.

51. The method of cutting a channel groove in the bottom of a quarryprovided with an oblique or overhanging side wall which consists inprogressively moving a cutting implement while held at a fixed anglerelatively to the quarry bottom d pcrcussively cutting a longitudinalchannel in the said bottom, stopping such channel short of the side wallof the quarrv and separately cutting the channel under the saidoverhanging wall by reciprocatively moving a cutting impleu'ient at ahanging angle formed and under the said wall and in the line of theplane of the channel groove while causing it percussively to strike thebottom of the cut.

:32. A channeling machine having a wheeled truck, a tool support at theside thereof, a reciprocatory tool, said truck being movable during theoperation of the tool to cut a continuous channel groove, and means forswinging the tool lengthwise the channel groove while cutting.

53. In a channeling machine the combination. with a movable carriage, atool mounted at the side of the carriage, and adapted to be held fixedthereat to cut a channel groove and means at will for releasing the tooland imparting to the same an angle movement on the carriage through theplane of the channel groove to extend the cut of the latter.

In testimony whereof, we have signed our names to this specification inthe presence of two subscribing witnesses.

ALBERT BALL. HENRY H. MERCER. \Vitnesses H. C. BERKEY, FRANK A. BALL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

It is hereby certified that in Letters Patent No. 1,011,145, grantedDecember 12, 1911, upon the application of Albert Ball and Henry H.Mercer, of Claremont, New Hampshire, for an improvement in Stone-CuttingMachines, an error appears in the printed specification requiringcorrection as follows: Page 10, line 44-, for the word formed readforward; and that the maid Letters Patent should be read with thiscorrection therein that the same may conform to the record of the casein the Patent Ofiice.

Signed and sealed this 16th day of January, A. D., 1912.

G. U. BILLINGS,

Acting Commissioner of Patents.

[SEAL]

